 2.2 or 2.0? |
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| cooper951 |
 Oct 4 2015, 11:43 AM
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Member  Group: Members Posts: 83 Joined: 30-September 15 From: Central Missouri Member No.: 19,219 Region Association: None  |
I bought my 914 on eBay (I know, stupid, but let's move on) and the owner said it had a Big Bore Stroker 2.2L engine, upgraded from stock 2.0L, freshly rebuilt. The mechanic who went over it, adjusted the carbs, and fixed some other issues said that because the compression was 140# in the cylinders, it could not be a 2.2. He said it would need to be 180# or higher in order to be a 2.2, and he couldn't say for sure unless the engine was torn apart, which of course I'm not going to do. I've taken different PCars there for over 20 years, and they have a very good rep in the St. Louis with the Porsche crowd, so I trust him. Any thoughts on this issue?
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| '73-914kid |
Oct 4 2015, 01:32 PM
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#2
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Senior Member Group: Members Posts: 1,473 Joined: 1-November 08 From: Vista, CA Member No.: 9,714 Region Association: Southern California  |
I'm not sure your mechanic knows what he's talking about.
Compression check numbers have nothing to do with the displacement of an engine, everything to do with quality and condition of sealing parts within the engine (valve seats, rings, etc.) Valve timing, and engine compression ratio. 140 psi does seem low for a fresh engine, but again. Just because it's a "stroker" motor, doesn't mean much about compression test values, or the compression ratio of the engine. If it ain't broke, don't fix it. Drive it and enjoy it. |
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Posts in this topic
cooper951 2.2 or 2.0? Oct 4 2015, 11:43 AM
Chris H. Hmmmm.... I'm no expert, but a "stroker... Oct 4 2015, 12:07 PM
porschetub
Hmmmm.... I'm no expert, but a "stroker... Oct 7 2015, 01:51 AM era vulgaris Did the seller offer any receipts from the shop th... Oct 4 2015, 02:40 PM pete000 I was wondering if there is a way to determine the... Oct 4 2015, 04:10 PM Dave_Darling The motor is "pumped". That's about... Oct 4 2015, 05:50 PM |
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